
Surf Forecasts:
Jaconé surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 9AM (local time) - 8ft (2.4m), 10s period, S swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 9AM (local time) - 8ft (2.4m), 10s period, S swell with 1,184 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 9AM (local time) - 3.5ft (1.1m), 11s period with SSE swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 9AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.7m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 2.4m 10s and forecast to arrive on Monday (Sep 07) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Tuesday (Sep 08) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 4th Sep) | 3.5ft (1.1m) 11s |
| Best Surf | 9AM (Mon 7th Sep) | 8ft (2.4m) 10s |
| Most Powerful | 9AM (Mon 7th Sep) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got a solid run of swell coming our way, but it’s a mixed bag of conditions. The pick of the week is hands down Monday, September 7th, with a proper pulse of south swell and glassy conditions. That’s the one to circle.
Jaconé kicks things off Friday morning, September 4th, with a clean 4 ft SSE swell and glassy offshore winds. The water is sitting at 73°, pretty much average for this time of year. The combined energy is moderate at 381. It’s a nice start, but the real juice is still building.
By Saturday morning, September 5th, the swell drops right off to 2 ft, but it’s glassy. Really small, but if you’re desperate for a glide, it’s there.
Sunday, September 6th, is a write-off. We’ve got 16 mph south winds shredding the surface with a 4 ft cross-on chop. The afternoon gets a bit bigger at 6 ft, but it’s choppy and ugly. Not worth a paddle.
Now, Monday, September 7th – this is the standout. The morning serves up a clean 8 ft south swell with glassy conditions. The combined energy is strong at 1194. This is for experienced surfers only; it’s too big for beginners. The afternoon holds solid at 7 ft, still glassy. This is the best window of the whole forecast.
Tuesday, September 8th, stays fun but drops a touch. Offshore winds from the ENE at 12 mph clean up a 5 ft south swell. The wave energy is moderate at 548. Good for a session, but not as perfect as Monday.
Wednesday, September 9th, sees a smaller 3 ft south swell with offshore winds in the morning. Decent enough for a cruise. The afternoon turns messy with a short-period east swell and a risk of storms.
Thursday, September 10th, the morning is glassy with a long-period 3 ft south swell, period of 12 seconds. The energy is moderate at 364. It’s clean, but small. The afternoon gets cross-on and messy.
Friday, September 11th, is all glassy conditions with a small 2 ft south swell. Long period again at 12 seconds. Clean lines, but only for the longboard.
We hit a gap from Saturday, September 12th, through to Sunday, September 13th, with small, weak, and messy surf. Not worth your time.
Monday, September 14th, kicks off the second week with a solid 6 ft SSW swell, but it’s cross-on and choppy. The afternoon sees a big 8 ft south swell with a 13-second period, combined energy of 2450 – that’s strong. But still cross-shore and chunky. Only for experts, and even then, it’s ugly.
Tuesday, September 15th, stays big at 7 ft south swell, period of 14 seconds, with clean cross-off winds. The energy is very strong at 1826. This is a heavy, powerful swell. It’s a long-period groundswell, so it’s going to be better for a point or reef, but here at the beach it might break a bit too straight. Conditions are clean though, so it’s worth a look for the experienced crew.
Wednesday, September 16th, holds at 6 ft with a 13-second period. Clean cross-off winds in the afternoon. The energy is strong at 1120. Still a solid, clean swell.
Thursday, September 17th, the morning has a clean 4 ft south swell, period of 12 seconds, with a cross-off breeze. Very good, clean conditions. The energy is moderate at 600. A good all-rounder day.
Friday, September 18th, the morning looks interesting with a 3 ft south swell, but the period is a very long 19 seconds. That’s proper groundswell, but it’s small. The energy is still moderate at 633. The afternoon picks up to 4 ft with an 18-second period, combined energy of 1009. This is a long-period swell, so the sets will be wide and clean, but it might be a bit straight for the beach. Best for the point.
Saturday, September 19th, the morning is glassy with a 4 ft south swell, 14-second period, and strong energy at 954. This is a very good, clean, long-period groundswell. The afternoon stays clean with a cross-off breeze. A solid end to the forecast.
Overall, the standouts are Monday, September 7th, and the long-period swells from Tuesday, September 15th, through to Saturday, September 19th. The Monday is the cleanest big day, while the later days offer clean but powerful, long-period groundswell that needs a bit of respect.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sat night. Warm (max 26°C on Fri morning, min 17°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Wed afternoon. Warm (max 26°C on Wed morning, min 16°C on Mon morning). Winds increasing (calm on Mon morning, fresh winds from the ENE by Tue night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSW 10 | SSW 8 | SSW 8 | S 10 | S 10 | SSW 10 | S 10 | S 10 | S 10 | S 10 | E 7 | ENE 7 | S 12 | S 12 | S 12 |
Wave Graph | |||||||||||||||||||||
314 | 214 | 117 | 85 | 59 | 34 | 245 | 509 | 730 | 1184 | 1006 | 492 | 467 | 416 | 294 | 192 | 158 | 284 | 236 | 233 | 184 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-on | glassy | cross | on | cross-on | cross-on | cross-on | glassy | glassy | off | off | off | off | off | cross | glassy | glassy | cross-on | off |
High Tide | 9:34AM0.80m | 6:52PM0.67m | 11:33AM0.87m | 10:37PM0.65m | 12:30PM0.95m | 11:48PM0.74m | 1:13PM1.01m | 00:29AM0.84m | 1:48PM1.04m | 1:03AM0.95m | 2:17PM1.04m | 1:34AM1.03m | 2:41PM1.03m | 2:06AM1.09m | |||||||
Low Tide | 3:04PM0.50m | 3:12AM0.26m | 4:32PM0.51m | 4:32AM0.19m | 5:40PM0.47m | 5:39AM0.11m | 6:28PM0.42m | 6:33AM0.02m | 7:07PM0.37m | 7:19AM-0.03m | 7:41PM0.31m | 8:00AM-0.05m | 8:14PM0.26m | ||||||||
5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | |
— | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — | |
mm | — | — | — | — | 1 | 5 | 3 | 4 | 7 | 1 | 3 | 7 | — | — | — | — | 5 | 1 | — | 5 | 5 |
Temp °C | 26 | 25 | 23 | 23 | 22 | 21 | 21 | 19 | 18 | 17 | 16 | 17 | 18 | 21 | 19 | 26 | 24 | 21 | 24 | 24 | 22 |
Feels °C | 27 | 26 | 25 | 24 | 23 | 22 | 20 | 17 | 16 | 17 | 17 | 15 | 16 | 18 | 16 | 28 | 26 | 23 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | E 8 | E 8 | E 8 | SSW 8 | S 10 | S 10 | SSW 10 | S 10 | S 10 | S 10 | E 7 | S 10 | E 7 | E 8 | S 12 | E 8 |
314 | 214 | 117 | 85 | 59 | 34 | 21 | 21 | 730 | 1184 | 1006 | 492 | 467 | 416 | 294 | 94 | 116 | 123 | 113 | 233 | 74 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 9 | E 9 | SSE 10 | SSE 10 | S 14 | E 8 | E 8 | E 9 | — | SE 7 | S 17 | S 16 | S 10 | S 15 | S 9 | S 12 | E 8 | S 12 |
55 | 66 | 50 | 39 | 36 | 33 | 9 | 36 | 12 | 5 | 6 | — | 75 | 6 | 5 | 192 | 17 | 81 | 236 | 54 | 184 | |
Swell 3 Height (m) Direction Period (s) | S 12 | S 11 | SSW 10 | SW 3 | SSW 9 | SSW 11 | S 15 | SSW 14 | ENE 8 | ENE 7 | S 20 | — | S 18 | — | S 16 | S 16 | E 12 | S 13 | SSE 9 | SE 14 | ESE 13 |
12 | 10 | 10 | 2 | 8 | 23 | 18 | 39 | 6 | 5 | 7 | — | 6 | — | 5 | 5 | 3 | 56 | 15 | 8 | 17 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 3 | SW 4 | SSW 10 | SSW 8 | — | — | — | ESE 6 | E 6 | E 6 | E 6 | E 7 | E 7 | ENE 7 | — | ENE 8 | — |
— | — | — | — | 4 | 4 | 245 | 509 | — | — | — | 77 | 96 | 156 | 148 | 134 | 158 | 284 | — | 176 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 10 | 58 | 0 | 10 | 58 | 415 | 2314 | 77 | 0 | 0 | 0 | 0 | 44 | 44 | 0 | 10 | 0 | 0 | 58 | 0 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.










